package com.mapper;

import com.domain.BlogArticle;
import org.apache.ibatis.annotations.*;

import java.util.List;

@Mapper
public interface BlogArticleMapper {
    @Select("SELECT * FROM t_article WHERE id = #{id}")
    public BlogArticle selectArticleWithId(int id);

    @Insert("INSERT INTO t_article (title, created, modified, tags, categories," +
            " allow_comment, thumbnail, content)" +
            " VALUES (#{title},#{created}, #{modified}, #{tags},#{categories}," +
            " #{allowComment}, #{thumbnail}, #{content})")
    @Options(useGeneratedKeys = true, keyProperty = "id", keyColumn = "id")
    public int publishArticle(BlogArticle article);

    @Select("SELECT * FROM t_article ORDER BY id DESC")
    public List<BlogArticle> selectArticleWithPage();

    @Delete("DELETE FROM t_article WHERE id=#{id}")
    public void deleteArticleWithId(int id);

    @Select("SELECT COUNT(1) FROM t_article")
    public int countArticle();

    //    @Update("UPDATE t_article SET title={title},created=#{created},tags = #{tags}, thumbanil = #{thumbnail}, content =#{content},"+
//            " categories = #{categories}, hits = #{hits},comments_num = #{commentsNum}, allow_comment = #{allowComment} WHERE id=#{id}")
//    public int updateArticleWithId(BlogArticle article);
    @Update({
            "<script>",
            "UPDATE t_article",
            "<set>",
            "<if test='title !=null'>title = #{title},</if>",
            "<if test='content !=null'>content = #{content},</if>",
            "<if test='created !=null'>created = #{created},</if>",

            "<if test='categories !=null'>categories = #{categories},</if>",
            "<if test='tags !=null'>tags = #{tags},</if>",
            "<if test='allowComment !=null'>allow_comment = #{allowComment},</if>",
            "<if test='thumbnail !=null'>thumbnail = #{thumbnail},</if>",
            "modified = CURRENT_TIMESTAMP," +
                    "</set>",
            "WHERE id =#{id}",
            "</script>"
    })
    public Integer updateArticleWithId(BlogArticle article);
}
